Wodehouse character Wooster (6)
I believe the answer is:
bertie
'wodehouse character wooster' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bertie that I've seen before include "... Ahern, FF politician" , "The familiar Mr Ahern, former Taoiseach" , "The familiar or informal Taoiseach" , "- Wooster (Wodehouse)" , "The familiar Irish Taoiseach" .)